Device for lubricating internal-combustion engines.



C. S. BAVIER.

DEVICE FOR LUBRIGATING INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAY 10, 1912.

LQWA 12 Patented Mar. 25, 1913.

fr zyi wi/tmczfoeo: A f @a/gisfinfoz I CHARLES S. BLVIER, OF NEW YORK,N. Y.

DEVICE FOR L'DMRIUA'IING INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Mar. 25, 1913.

Application filed May 10, 1912. Serial No. 696,295.

invented certain new and useful Improvements in Devices for LubricatingInternal- Combustion Engines, of which the following is a specification.

This invention relates to improvements in devices for lubricatinginternal combustion engines.

By reason of the high temperatures and other conditions prevailing inthe operation of internal combustion engines, the proper lubrifaction ofthe cylinder of the engine is rendered unusually difiicult, and the useof the ordinary liquid lubricants is attended wi'ah such carbonizationof the engine and its valves that such'lubricants are very undesirable.

It isthe purpose of this invention to pro- .vide eflective lubrifaction,without risk of carboni zation, by equipping the piston with atransversely movable ring of suitable lubricating material. This ring isemployed in combination with the gas-tight spring packing ring, and thewalls of the cylinder and the surface of the piston are eflectuallylubricated, and so that the said packing ring will not score or injurethe cylinder wall.

Referring to the drawingsfwhich accompany the specification to and thedescription, Figure 1 is a longitudinal broken'section of a cylinder anda piston of an internal combustion engine equipped with the invention.

Fig. 2 is an edge elevation of the lubricating ring. Fig. 8 is a planview of said lubricating ring.

A is the cylinder arranged with its axis vertical, and B the piston.Said piston B has a small clearance in said cylinder A, and is madetight in said cylinder by the gastight spring ring 0, secured, in acircumferential recess 0, around said piston in the usual manner. I

A. ring D of any suitable lubricating material, such as lead or itsalloys, soft rass,

Babbitt metal, or other lubricatin material, 1s located loosely in acircum erential recess 03 formed in said piston B. The depth of saidrecess d. is a .little greater than the diameter of said ring D, whichis preferably circular in cross section, so that said ring D is capableof a little transverse motion in said recess, and the top and bottom ofsaid recess d are'inclined in order to produce a thrust of the ring Doutwardly toward the cylinder wall. To facilitate said transversemovement of said ring D, and also to facilitate assemblingsaid ring D inits recess, I prefer to form said rin in two parts rovided with beveledmeeting ends e, e. Said ring D constitutes in effect a split ring, and

the said two parts can work a little in and out with respect to'eachother; the transverse motion of said ring D in said recess d, as thepiston B reciprocates causing said ring D to touch and deposit lubricantfirst on one, then on another partof the wall of the cylinder A, and thepacking ring C quickly spreads the lubricant over the entire workingsurface of the cylinder A and offectually lubrl ates the same.

Now having described my improvements, I claim as my invention.

. 1. The combination with a cylinder and a reciprocating piston ofanjnternal combustion engine, of a transversely movable ring oflubricating material mounted on the periphcry of said piston,substantially as described.

2. The combination in lubricating devices for internal combustionengines of a piston provided with a circumferential recess, a ring oflubricatin material located loosely in said recess, and a packing ringon said piston, substantially as described.

3. The combination in lubricating devices for internal combustionengines, of a piston provided with a circumferential recess, a movablesplit ring of lubricating material located loosely in said recess, and apacking ring on said piston, substantially as de scribed.

4. The combination in an internal combustion engine,of a piston providedwith a circumferential recess having inclined walls, New York and Stateof New York this 4th a transversely movable ringof lubricating day ofMay, A. D. 1912. material positioned loosely in said recess and impelledoutwardly by said walls, and a I CHARLES BAVIER' 5 packing ring on saidpiston, substantially Witnesses:

as described. WALTER N. Hamus,

Signed at New York city in the county of G. W. HOPKINS.

